Witnesses said she had been walking near the tracks when the train hit her, police said. "The incident does appear accidental (not intentional)," according to a Police Department news release.

The incident occurred around 4:20 p.m., and the tracks were closed for 21/2 hours, CSX spokesman Gary Sease said. The train, with two locomotives and 54 cars, was traveling from Albany, N.Y., to Richmond, Va.

On May 28, a CSX train hit a truck at a crossing in Rosedale, triggering a derailment, a fire and a chemical explosion that was felt around the area.

The only person seriously injured in that incident was John Alban Jr., the driver of the truck. He had been carrying trash, officials said.

Last August, a CSX coal train derailed in Ellicott City, killing two 19-year-old women who were sitting by the tracks. Longtime friends Elizabeth Nass and Rose Mayr were on a railroad bridge about 20 feet above Main Street at the time of the accident.